Question 1
Question
Label this graph
Answer
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Independent Variable
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Dependent Variable
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Line of best fit
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Data points
Question 2
Question
Solid is the coldest state of matter.
Question 3
Question
Liquid turns into gas through condensation.
Question 4
Question
Boiling point is a chemical property.
Question 5
Question
"The mouse is small" is a qualitative assessment.
Question 6
Question
A piece of metal is placed inside a test tube along with a liquid. After a few seconds bubbles begin to form and soon steam starts to form on the surface of the liquid. This is a physical change.
Question 7
Question
George is making salad dressing. In order to do so he has to mix vinegar and oil. However, when he pours both substances into the same container they separate and the oil floats to the top. What can you conclude about the density of both materials?
Answer
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The oil is less dense than the vinegar.
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The oil is more dense than the vinegar.
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The oil and the vinegar have the same density.
Question 8
Question
If the mass of a substance is 10g, and the density of a substance is 5g/mL, the volume of the substance is [blank_start]2mL.[blank_end]
Question 9
Question
An Alloy is a solid pure substance.
Question 10
Question
Check of the properties of all metals.
Question 11
Question
A glowing split was exposed to a gas. Upon exposer it caught on fire. What was the gas?
Answer
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Hydrogen
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Neon
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Oxygen
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Helium
Question 12
Question
Protons have a [blank_start]positive charge[blank_end], are located in the same place as a [blank_start]neutron[blank_end], and have a relative mass of [blank_start]1 amu[blank_end].
Neutrons have [blank_start]no charge[blank_end], are located in the nucleus, and have the same mass as a [blank_start]proton[blank_end].
[blank_start]Electrons[blank_end] have a [blank_start]negative[blank_end] charge, are located in the [blank_start]orbits[blank_end], and have a relative mass of [blank_start]1/2000[blank_end] amu.
Answer
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positive charge
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neutron
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1 amu
-
no charge
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proton
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Electrons
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negative
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orbits
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1/2000
Question 13
Question
What is the Bohr-Rutherford model of sodium?
Question 14
Question
Label the solar system.
Answer
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Sun
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Mercury
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Venus
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earth
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Mars
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Jupiter
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Saturn
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Uranus
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Neptune
Question 15
Question
Gravity is important.
Answer
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Agreed.
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Agreed!
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Agreed .
-
Agreed .
Question 16
Question
The hottest stars are the Blue/M class.
Question 17
Question
Why do we have seasons?
Answer
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Changes in the atmosphere.
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Sunlight falls at different places at different times due to the tilt of the earth
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Sunlight falls at different places at different times due to the earth's place in it's orbit
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Ocean currents
Question 18
Question
A solar eclipse is when light from the sun is blocked from getting to the earth by the moon.
Question 19
Question
Once a yellow dwarf starts to run out of fuel it will shrink.
Question 20
Question
When looking at stars, scientists observed that many of their spectral lines appeared to be [blank_start]red-shifted[blank_end]. This means that the stars were moving [blank_start]away[blank_end] from us. This was taken as evidence of the universe expanding, and the [blank_start]Big Bang[blank_end].
Answer
-
red-shifted
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away
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towards
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Big Bang
Question 21
Question
Opposite charges [blank_start]attract[blank_end]. Like charges [blank_start]repel[blank_end].
Question 22
Question
Charging by friction is when one substance has a charge, the other is neutral, and the charges flow from one to the other.
Question 23
Question
A dry cell battery refers to
Answer
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A battary with an electrolyte that is a paste
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A battery with an electrolyte that is a liquid
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A battery that can be rechared
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A battery that can not be recharged
Question 24
Question
Ohms law states that:
[blank_start]Voltage[blank_end]=CurrentxResistance
Question 25
Question
How many years does it take for the population to rach the carrying capacity?